How do you calculate the degrees of freedom for a t distribution what happens to the shape?

The method used to find the estimated linear regression equation is called

How is the quotient 80000 divided by 2000 different from the quotient 80000divided by 200 or 80000 divides by 20

Write the simplified expression for the sum of (2x - 5y) and 4 (y + x).

How write 119,000,003 in other forms

A toaster oven usually sells for $68. If the toaster oven is 20% off, and sales tax is 6%, what is the total price of the toaster oven, including tax? A. $68.16 B. $54.40 C. $57.66 D. $72.08

Consider the polynomial p (x) = 16x^4-81y^4. Which of the following are equivalent expressions? Select all that apply A: (4x^2-9y^2) (4x^2-9y^2) B: (4x^2-9y^2) (4x^2+9y^2) C: (4x^2+9y^2) (2x^3y) (2x-3y) D: (4x^2+9y^2) (2x+3y) (2x+3y) E: (4x^2+9y^2)

The weights of the apple in a local supermarket is normally distributed. The mean weight is 45 pounds with a standard deviation of 2.5 pounds. How much do the middle 68% of the apple weigh? Between 42.5 and 47.

The Cincinnati zoo had 25 snakes before the Columbus zoo gave them 5 more. What is the percent increase from the 25 snakes?

Which expression is equivalent to 3/4 (3x - 5) A.-3/2x B. 6x C. 9/4x-15/4 D. 9/4x + 15/4

7.8 as a mixed number in simplest form